Motor-driven agricultural apparatus.



A. E. COOK & S. E. KURTZ.

MOTOR DRIVEN AGRICULTURAL APPARATUS.

APPLIGATION FILED 11111.5, 1906.

1,010,238. Patented N0v.28, 1911.

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MOTOR DRIVEN AGRICULTURAL APPARATUS.

APPLICATION FILED n.5, 1906.

1,010,238. Patented N0v.28, 1911.

12 SHEETS-SHEET 2.

A. E. COOK & S. E. KURTZ.

MOTOR DRIVEN AGRICULTURAL APPARATUS.

APPLICATION FILED JAN.5, 1906.

1,010,238. Patented Nov. 28, 1911.

12 SHEETS-SHEET 3.

BY M M M. ATTORNEYS A. E. COOK & S. E. KURTZ. MOTOR DRIVEN AGRICULTURAL APPARATUS.

APPLICATION FILED JAN.5, 1906.

1,010,238. Patented Nov. 28, 1911.

12 SHBBTS-BHBET 4.

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MOTOR DRIVEN AGRICULTURAL APPARATUS.

APPLICATION FILED JAN.5,1906.

1,010,238. Patented Nov. 28, 1911.

12 S HEETS'SHEET 5.

A. E. COOK & S. E. KURTZ.

MOTOR DRIVEN AGRICULTURAL APPARATUS.

APPLIOATION FILED mum, 1906.

1,010,238. Patented N0v.28, 1911.

12 SHEETS-SHEET 6.

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WITNESSES. /NVENTORS .JZ lez'fE- CoaA:

f fiyhjprfi 4 pgmwzziimrzz ATTOHNEI S A. E. COOK & S. E. KURTZ.

MUTOR DRIVEN AGRICULTURAL APPARATUS.

- APPLICATION FILED JAN. 15 1906 1 ,O10,238. Patented N0v.28, 1911.

12 SHEETS-SHEET 7.

04 m M175 M A77'OHNEYS A. E. COOK & S. E. KURTZ. MOTOR DRIVEN AGBIGUL'IURAL- APPARATUS.

APPLIGATION FILED JAN.5, 1906. 1,010,238. Patented N0v.28, 1911.

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01/ 4 m ,lggmugzzfiwzz M r@ W M. ATTORNEYS A. E. COOK 8: S. E. KURTZ. MUTOB DRIVEN AGRICULTURAL APPARATUs.

APPLICATION FILED 31111.5, 1906.

1,010,238. Patented Nov. 28, 1911.

2 As amuel .Ellfuriz ATTORNEYS A. E. COOK & S. E. KURTZ.

MOTOR DRIVEN AGRICULTURAL APPARATUS.

APPLICATION FILED JAN. 5, 1903. 1,010,233, Patented Nov.28, 1911.

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MOTOR DRIVEN AGRICULTURAL APPARATUS.

APPLIUATION FILED JAN.5, 1906.

1,010,238. Patented Nov. 28, 1911 12 SHEETS-SHEET 11.

WITNESSES. lNVE/VTOHS J lberz E- ("0075 ATTORNEYS A. E. COOK & S. E. KURTZ.

MOTOR DRIVEN AGRICULTURAL APPARATUS.

APPLIGATION FILED 11111.5, 1906.

1,010,238, Patented Nov. 28, 1911.

12 SHEETS-SHEET 12.

Mill-1| j 5 5 ,iunud {51164112 244454 @m. ATTORNEYS W/T/VESSES: 5

UNITED STATES PATENT OFFICE.

ALBERT E. COOK AND SAMUEL E. KURTZ, OF ODEBOLT, IOWA, ASSIGNORS TO THE INTERNATIONAL MOTOR PLOW COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF SOUTH DAKOTA.

MOTOR-DRIVEN AGRICULTURAL APPARATUS.

Specification of Letters Patent.

Patented Nov. 28, 1911.

Application filed January 5, 1906. .Serial No. 294,732.

To all whom it may concern:

Be it known that we. ALBERT E. C001: andv in the county of Sao and State of Iowa,

have invented a new and Improved Motor- Driven Agricultural 'Ap aratus, of which the following is a. full,.c ear, and exact description. r

The inyention relates to certain improvements over the prior patent to Samuel E. Kurtz, Serial Number781,214, dated January 31, 1905, and our prior patent, Serial Number 789,528, dated May 9, 1905, disclosing machines in which 'an engine is mounted on the frame of the apparatus and cared with peculiarly arranged combined cu tivating and propelling tools supportin the up paratus, cultivating the earth, an propelling the apparatus over the same.

The essential object of our present invention is to simplify the construction and organization of the apparatus, rendering the same better suited to practical operations,

and better capable of enduring the strains necessarily imposed upon it.

A further object is to improve the arrangement and manner of mountin and driving the rotating cultivating an? propelling tools.

It is also an object of our invention to provide both manual and power actuated steering means, enabling the apparatus to be steered or guided easily and accurately.

A further objectis to rovide for operating the apparatus in mu tiple, two or more being coupled together and driven by a single engine, or by an engine on.each apparatus as desired.

Our invention contemplates various other objects of ma'or or; minor importance, and all will be fu 1y set forth hereinafter.

To these ends our invention resides in certain novel features of construction and com- I b'inations of parts, which will be full set forth hereinafter and particularly pointed out in the claims.

Reference is to be had to the accompan ing drawings which, illustrate as an exa'mp e the preferred embodiment of our invention, in whi h drawin s-# Figure l is a side view of the ap aratus; i a plan view of the same; ig. 3 is -a front elevation with parts in section on the line 33 of Fig. 2; Fig. 4 is a sectional elevation of the hand steering devices, and illustrating the gearing connected therewith for driving" the steering screws; Fig.6 is a bottom plan view of said gearing; Fig. 6 is a gear with the power driving devices, and also showingthe manner of connecting the steering gear of one apparatus with that of the second when two apparatus are used together; Fig. 7 is an enlarged detail showing one of the nuts which are actuated by the steering screws; Fig. 8 is a sectional elevation on the line 88 of Fig. 7; Fig. 9 is a rear 'elevational view showing the power steering levers and the gear actuated thereby; Fig. 10 is a plan view of said gear; Fig. 11 is a (plan view showing the two apparatus couple together, and illustrating the ar-- rangement which is followed in case the second apparatus is driven by the engine of the first; Fig. 12 is an enlarged lan view of'the rear couplin employed in ig. 11; Fig. 13 is a sectiona elevation thereof on the line 13-13 of Fig. 12; Fig. 14 is a sectional elevation on the line 1414 of Fi 12; Fig. 15 is an enlar ed detail showingt e forward coupling emp oyed in Fig. 11, and illustrating a the drive shaft passing through the same; Fig. 16 is a section on the line 16-46 of Fig. 15; Fig. 17 is a fragmentary elevation showin the seeding attachment with parts in section on the line 2727 of Fig. 2; Fig. 18 is a fragmentary plan illustrating the operation of the seeding attachment in connection with the adjustment of the cultivating and propelling tools; Fig. 19 is an enlarged detail showing an attachment by which to convert theapparatus into a roller; Fig. 20 is an end view of the construction shown in Fi 19; Fig. 21 is a. sectional view of a modifie arrangement for mounting the frame on the propelling and cultivating tools; and Fig. 22 is a plan view of the same.

As shown in Figs. 1 and 2, the apparatus has a. ri id main framing which is composed prmcipally .of side rails 35, having off-set portions 35 at their front ends to facilitate coupling two machines together, as willhereinafter fully) appear. The side rails 35 are connected y cross beams 35", 35, 35 and 3B", which extend continuously diagrammatic view illustrating the steering across between the side rails 35. Located in the center of the machine are longitudinal beams or rails 35 which support the engine bed 135-. Cross members 35 connect the central members 35 with the side members 35, and said cross members 35" support longitudinal frame members 35 which are fastened to the parts 35 and 35 and which ogcther with the parts 35 sustain a platform 35* just rearward of which the seat 36 for the driver is mounted. In an opening formed in the widened front framing of the apparatus is located the auxiliary front frame which. is rectangularin form, having side members 37 joined by transverse members 37, reinforced by intermediate braces 37", and a central bracing composed of longitudinal members 37 connected b cross members 37 This frame is pivota ly mounted to rock on the main frame around an axis extending longitudinally of the machine by means of trunnions and sockets 38 which are carried respectively on the parts 37 and 35 and 35".

The auxiliary front frame as shown best in Fig. 3 supports two independently adjustable groups of rotating cultivating and propelling tools. Each group of tools is carried on a frame 39 which is pivotally connected throu h a central pin and socket 40 and a king olt 41 with the auxiliary front frame. The cultivating tool frames are provided with guide rings or fifth wheel sections 42 securely fastened to the frames and adapted to engage short segmental rails or shoes 43 secured to the under side of the auxiliary front frame. By means of these devices, therefore, the cultivating tool frames are arranged to turn around the centers of the pins 41, this turning movement being guided and the parts being steadied by the engagement of the elements 42 and 43, and at the same time both gangs of cultivating tools are free to rock around the center of the trunnion 3-8 bodily with the auxiliary front frame. Depending from the cultivating tool frames 39 are'hangers 44, in which are revolubly mounted the shafts 45 carrying cultivating and propelling tools 46. These tools are in the form of concavo-convex disks, and, as best shown in Fig. 1, are formed with rounding undulatory edges, which formation is best adapted to a thorough and easy cutting of brush, sod and the like. Preferably, we fasten to the shaft 45 between one or more of the tools or disks 46 drum sections 47 shown in Fig. 3, which when the a paratus is working in soft earth limit the epth to which the tools may enter the same, and prevent stalling the machine.

At the rear ofthe machine are arranged repelling two gangs of cultivating and tools 46 similar to the tools 46 fore described. These gangs are carried respectively by frames 39*, which are in all essential particulars the same as the frames 39 (see Figs. 2 and 17). The frames 39 are pivotally mounted under the main frame of the apparatus. by center pins and sockets 40 and king bolts 4]. 42 and 43 indicate fifth wheel sections similar to those before described for guiding the frames 39 in their turning movement on the main frame of the apparatus. Depending from the frames 39 are hangers 44 in which are mounted the axles 45 of the rear tools 46*. It, therefore, follows, that the main frame of the apparatus carries the two rear gangs of cultivating and propelling tools, which gangs are capable of adjustment on vertical axes, and that the auxiliary front frame is rockably carried by the main frame and in turn sustains the two front gangs of tools, so that those gangs may be adjusted the same as the rear gangs.

4% indicates the engine which furnishes the motive power for operating the apparatus, and which is mounted on the bed 35 as shown. This engine is preferably an internal combustion engine using oil as fuel, although other forms of power may be employed if desired.

'49 indicates the fly wheel of the engine, and 50 indicates the transmission gearing which drives a chain 51, and which enables the speed and direction of movement of the chain to be changed at will without reversing the engine, all of which will be under stood in the motor vehicle art. Said chain 51 drives a counter-shaft 52 which is suitably mounted in the central frame members 35', and from this shaft a drive chain 53 passes forward and a drive chain 54 passes rearward. The forward chain 53 passes to a differential gear 55 connected to the shaft sections 56 (see Figs. 2 and 3). The shaft sections are mounted in the auxiliary front frame in suitable bearings provided therefor, and they are connected by two double universal joints 57 with shaft sections 58 mounted in bearings 59 sustained on the tool frames 39. Said universal joints 57 are so arranged that they. will permit 'the tool frames 39 to turn on the auxiliary front frame without interfering with the transmission of rotary movement from the shafts 56 to the shafts 58. By providing double universal couplings having fixed vertical axis centrally located in line with axis 41, the angularity of the shaft axes at the couling is decreased, with a consequent-saving in power and without danger of breakage due to excessive strains and overheating. From the sprocket wheels on the shaft sections 58 driving chains 60 pass down to sprocket wheels on the shafts 45, so that in t is manner the front tools are driven from the en 'ne in either direction according to the admstment of the transmission gearing 50. The chain 54: passes rearward to a. differential gear 61 connecting the rear drive shaft sections 62 which are suitably mountml in the rear portion of the main frame of the apparatus. These shaft sections respectively extend over the pivots connecting the tool frames 39 with the main frame, and at this point are provided with universal joints 63, similar to the joints 57 before described. these joints connecting the Shaft sections 62 with shaft sections 64 suitably mounted on the tool frames (see Fig. 17). From sprockets on the shaft sections 64 chains 65 pass down to sprockets on the shafts 45 so as to drive the same. By these devices the rear cultivatin tools are driven the same as the front, said tools having a rotary motion, and this drive bein independent of the adjustment of the cultivating tools around the axes of the couplings 40 and 40 The differential gears referred to above may be of any of the various types, such for instance as is shown in detail in Fig. 3. These gears serve to transmit to the gangs of disks equal driving motions, but to allow the disks to rotate independently from motion applied directly to them, for example by reason of some unevenness in the roadway or in the turning of the plow on a curve in which the outer gang must rotate faster than the inner gang. The differential gears in the arrangement shown are particularly useful owing to the use of gangs of disks engaging into the earth with little or practically no slippage, since otherwise the differential movements of the gangs of disks would exert the most destructive strains on the various elements concerned with driving the disks.

As will fully ent hereinbefore the apparatus the angularity to the longitudinal line appear from our prior patreferred to, the steering of is effected by varying of the shafts 45 and 45' of the-machine.

Our improved gear for so adjusting the cultivating tools will now be described. Revolubly mounted in suitable hearings on the central portion of the ma 11 frame (see Fig. 2) are two screw shafts 66 which, as best shown in Fig. 6, are each provided with right and left hand threads. On these threads nuts 67 o )erate, and said nuts are provided with for s 68 which embrace portions of the frame members 35 so as to revent rotation of the nuts (see Figs. 7 antfB). Said nuts have links 69 connected thereto, and these links extend two forward and two backward respectively into pivotal connection with the tool frames 39 and 39 so that by rotating the will be advanced along the shafts in one direction or the other, according to the direction of rotation of the shafts, and in this manner the tool frames with their connected shaft 70 in position.

forks and guides shafts 66 the nuts 67 I shaft 91. The clutch col tools will be turned around the centers of the pivots 40 and 40 adjusting the angularity of the tools, as will be understood from the prior art and as illustrated in Fi .18.

The screw shafts 66 extend rearward to a point under the platform 35", and at this point they are connected with the manual and power steering gears. These gears are provided so that eitherone or the other may used according to the conditions under which the machine is operated. If the work is light the apparatus may be steered by hand, and if the work is heavy and difficult, or the machines are being operated in multiple, it is preferable to steer by the power devices. The hand steering devices are illustrated best in Figs. 4 and 5. Suitably mounted in shaft 70 throu h which a shaft 71 passes loosely. The shafts 70 and 71 carry hand wheels 72 and 73 respectively, and 7 4 indi cates a dog by which said wheels may be connected to turn in unison, if desired. At the lower ends the shafts 70 and 71 respectively carry gears 75 and 76 which are in mesh with gears 77 and 78 carried respectively on shaft sections 79. The shaft sections 79 carry gears 80 which mesh with gears 81 fastened on the screw shafts 66. With this arrangement it is clear that by turning either of the. hand wheels 72 or 73 either of the screw shafts 66 may be operated so as to adjust the gangs at one orthe other side of the machine, as desired, or by throwing the dogs 74 into action and connecting the hand wheels, said wheels with the shafts 70 and 71 and gears 75 and 76 may be turned as a unit, thus operating both screw shafts simultaneously and bringing about simultaneous adjustment of all of the gangs of tools. have shown hand wheels 72 and 73 and the Wehave also illustrated in outline the gears connectedtherewith.

The power steering devices are illustrated best in Figs. 9 and 10. These devices comprise tubular and solid "shafts 82 and 83' suitably mounted in theplatform 35 and having arms or JQV'BNLM and 85 connected to their u per endaso'as 'topermit their operation independently as desired. At their lower ends the shafts 82 and 83 are provided with crank arms 86, to which links 87 are pivoted. These links are reciprocated in guide hangers 88 and have forks 89 attached to them. 90 indicates springs which engage between the 88 and which serve to hold the forks and their connected parts yieldingly in intermediate position. The forks 89 have pins en aged with grooved clutch collars 90 whic are 3 lined on a drive [fire 90 are adapted the platform 35 is a tubular In Figs. 1 and 2, we

or simultaneously,

to engage t'lttlch faces on either of two gears 92 which are loosely mounted on the shaft.

J1 and meshed with genie-1 3 respectively on the screw shafts (Stl. 'lhe drive shaft 111 is adapted to be continluulsly drivcn in any suitable manner, for example, by a bolt. 94 passing around a band wheel on on the drive shaft. and extending from a. suitable band wheel 96 on one of the rear drive shaft sec tions 62 (see Fig. 11).

As shown in Fig. 1, a canopy (1? is provided for the comfort. of the operator. and for the protection of the machinery from the weather, and this is sustained by stanchions 98. If desired, the shafts 82 and 83 may be further braced by a CIQSS member 118 sus tained by the rear SttIIlUlIIlODS 98. Said cross brace is illustrated in Fig. 9. It will be seen that by throwing either or both of the crank arms 86 the clutch collars 90 will be moved from their Ilflllt'lfil position into ongagement. with one or the other of the normally inactive gears 99; thus driving the desired gear 92 with the shaft 91 and operating the screw shafts 66 through the gears 93. In this way the shafts may he operated indopendentlyin either direction or simultaneously, the same as with the hand steering devices.

As shown in Figs. 1, 2 and 17, the main frame carries at its rear portion seed hop pers 114 which are provided with outlet spouts 115 discharging into drill tubes 116. These drill tithes have enlarged upper ends 116 so that the adjustment. of the rear cultivating tools will not interfere with the discharge of the seeds from the spouts 115 into the tubes 116 as said tubes 11(3 dis charge the seed against. the convex sides of the tools 46*. In this manner seed may be planted from the apparatus at the same time that; the ground is cultivated. The hoppers 111 are provided with the usual agitators (not. shown), and these may be driven by a chain 117 (see Fig 1?} operating a clutch member 118 loosely mounted on the agitator shaft. 119 irnlicatcs a. coacting clutch member fast on the shaft and engaged by a lever 120 facilitating the adjust ment of the clutch member.

The apparatus is provided with spring harrow teeth 1'31, the same essentially as those disclosed in our prior patent above re ferred to, and ha ing essentially the same function. Said teeth are mounted on a tubular rock shaft. 122 in any suitable nnlnncl:

As shown in Fig. 2, the r0(.l-sl1:1fl. 1:22 is mounted on the side members 35 of the frame, and is provided with a. hand lever and quadrant 128, by which the shaft may he rocked and the teeth raised or lowered into active or inactive position, as desired.

In working on rough or rocky land, it may be advantageous to emplov springs or other yielding connections between the main fran'ie and the supporting means, and the n'nun'n r in which this may be effected is illustrated in Figs. 21 and 22. In said View 37 and 37 indicate parts of the auxiliary or front frame, and 56 indicates the driving shaft sections thereof before described. 124 indicates a spider frame which is fastened on the auxiliary frame and carries securely a socket 125. In this socltet telescopes a tubular stanchion 126 which rises from a bracket 127, the bracket projecting from a box 128, and said box and hearing carrying securely a non-rotatable cylindric covering 129. Revolubly mounted in the bearing 128 is a shaft. 130 corresponding to the shaft 45 before described. This shaft carries brack ets 1:11 to which drums 132 are secured, these drums being similar to the drums 47 before described and having rotating engagement with the ends of thenon-rotary drum 129. To said drums 132 the cultivating and propelling tools 16 are fastened. Fastened to the shaft 130 is a gear 133, and this gear is in mesh with a. gear 13 1 011 a. shaft 135. which extends through a tubular stanchion 136 and up through the socket 12?. The upper end of the shaft 135 is held in a brace 124, and splined loosely on the shaftv is a gear 136 in mesh with a gear 137 on the shaft 56. 188 indicates a stout. coiled spring which surrounds the socket member 125 and stanchion 126, and bears between said parts so as yieldingly to sustain the frame and its attachment on the cultivating tools. By this arrangement not only is the frame spring sustained, but the tools may be aldjusted by swinging them around the center of the shaft 135 without. involving ihenecessity of the universal joint hereinbcfore described.

If desired. rollers or cylindric shields 139 (see Figs 19 and 20) may be applied to the drums 132 to convert the apparatus into a roller and to enable it to be transported from place to place when not: plowing without. injury to the roads or fields over which it. is moving. ore these shields not employed, in transporting the plow over public or other roads, these roads would be so injured that use of the machine would be prohibited, and tho shields are. therefore quite necessary to the practical employment of our invention. Those drums may be applied in any desired manner. As here shown they are 'irovidcd with spiders 140 which embrace the drums 132. and said roll (11's 139 are constructed in sections, as indithird by the broken lines in Fig. 20, and fastened together by bolts 1 11. This allows the rollers 1391 to he applied quickly and without necessitating the removal of the disks 4(3. lncidcntally these shields may be employed to convert the apparatus into a roller, for rolling down plowed 0r otherwise broken ground.

As shown in Fig. 11, two or more of the machines may be coupled together so to increase the work performed and for this purpose the side rails 35 of the main frames are offset at 35" as before described. The machines are arranged side by side, and are connected together by links 142. These links are pivoted to said rails and each link is formed in two" sections, as shown best in Figs. 13 to 16, the sections of the links being joined by tubular coupling 143 and a nut 144, as shown. If desired, the machines may otherwise be entirely inde pendent of each other, each being provided With its separate engine, or only one of the machines may be provided with an engine, the other machine being driven from this engine. in which case the machine having the engine is provided with a countershaft 145 mounted transversely in the frame just forward of the engine shaft and driven by .a chain 146. This shaft is connected by a double universal joint 147 with a transyerse shaft 148 arranged on the next adacent machine in line with the shaft 145. The universal joints 147 are coincident to the pivots of the links 142. the shaft extending through the tubular coupling 143 of the forward pair of links 142. From said shaft 148 the chain 14.) passes to a dilfercntial geared countcrshaft 52* mounted on the second machine, and from this countel-shaft the machine is driven inlhe man ner before described with reference to the countershaft 52. The second machine is steered from the first by means of chains 150 passing respectively from the screw shafts 66 and extending through the tubular coupling 144 of the rear pair of links, and connected respectivelywith the screw shafts 66 of the second machine. Mounted adjacent to the rear links 142 are uide rollers 151 which are engaged by the chain and are flanged. as shown in Figs. 12 and 13, so as to prevent the chains from running off the rollers.

In the organized operation of the appa ratus, the engine should be started and the cultivating and propelling tools adjusted to the desired angularity with respect to the longitudinal line of the machine. The transmission mechanism 50 should now be thrown in, causing the tools to rotate, and the action of the tools simultaneously propelling the apparatus and cultivating the earth, as is fully set forth in our prior patent referred to. The apparatus may be steered at will through the hand wheels 72 and 73, or through the power steering mechanism as desired. If it be desired to plant seed at the same time that the plow is in operation. this may be done by throwing into action the clutch member l1! and otherwise adjusting the. seeding devices, which devices may in themselves be of any desired form. The harrowing and cultivating teeth 121 may also be thrown in or out of action, as desired. and all these operations may be controlled from the seat of the driver. In case two or more machines are coupled together, as illustrated in Fig. 11, a single drivermay have control of all of the machines, or if desired an attendant may be placed on the second machine to watch the operation thereof, and also to operate the harrowing and cultivating teeth. 121. If desired said teeth may be connected together by a chain or its equivalent 153 (see Fig. 11). When two or more machines are used together it is preferable to employ the power steering gear, since in this way the steering operation is rendered less laborious.

Having thus described the preferred form of our invention, what we claim as new and desire to secure by Letters Patent is:

1. A motor driven agricultural apparatus, comprising a frame, a tool frame arranged to turn thereon, a tool carried by the tool frame, means for adjusting the tool from an engine mounted on the first named frame, and means for driving the tool from the engine, said means comprising a double universal joint juxtaposed to the center of turning movement of the tool frame.

2. In a motor driven agricultural apparatus, the combination of a main frame having an opening in the front thereof, an auxiliary front frame movably mounted in the said opening in substantially the plane of the main frame, combined cultivating and propelling tools attached to the rear part of the main frame and to the auxiliary front frame. and means for driving the said tools.

3. In a motor driven agricultural apparatus, the combination of a main frame having an opening in the front portion thereof, an auxiliary front frame pivotally mounted in said opening in substantially the plane of the main frame, cultivating tools mounted on the rear portion of the main frame, and additional tools mounted on the auxiliary front frame.

4. Au agricultural apparatus having a main frame with an opening in the front portion thereof, an auxiliary front frame mounted in said opening in the main frame to rock freely around an axis extending longitudinally of the machine and located intermediate the sides of the auxiliary front frame. cultivating tools mounted to turn around substantially vertical axes at the rear portion of the main frame, additional cultivaling tools mounted to turn around substantially vertical axes under the auxiliary front frame, and means for turning said tools.

5. An agricultural apparatus having a frame with an opening in the front portion thrrcof, an auxiliary front frame mounted in said opening in substantially the plane of the main frame, tool frames carried to turn at the rear portion 'of the main frame, tools carried by said tool frames, means for turn;- ing the frames, tool frames carried to turn by the auxiliary front frame, means for turning the second named tool frames, and tools carried by the second named tool frames.

6. An agricultural apparatus having a main frame with an opening in the front portion thereof, an auxiliary front frame arranged in said opening in substantiall the plane of the main frame, a tool rame mounted to turn on the rear portion of the main frame, a tool carried by the tool frame, a tool frame mounted to turn on the auxil iary front frame, a tool carried by said tool frame, fifth wheel sections carried respectively by the main and auxiliary frames and the tool frames, and engaging each other for the purpose specified, and means for turning the tool frames.

7. An agricultural apparatus having a main frame with an opening therein, an

auxiliary front frame mounted to lie in the opening in substantially the plane of the main frame and arranged to turn around axes extending longitudinally of the main frame, means for supporting the rear part of the main frame, tool frames mounted to turn under the side portions of the auxiliary front frame, tools carried by the tool frames, and means for turning the tool frames.

8. An agricultural apparatus having a main frame with an opening therein, an auxiliary front frame mounted to lie in the opening in substantially the plane of the main frame and to turn around axes extending longitudinally of the main frame, means for supporting the rear part of the main frame, tool frames mounted to turn under the side portions of the auxiliary front frame, tools carried by the tool frames, and means for turning the tool frames, the auxiliary front frame and tool frames having curved fifth wheel sections respectively connected therewith and engaging each other, for the purpose specified.

9. An agricultural apparatus having a main frame, an auxiliary front frame pivotally mounted thereon, two tool frames arranged to turn at the rear of the main frame,

fifth wheel sections acting between said tool frames and the main frame, for the purpose specified, combined cultivating and propelling tools carried by the tool frames, two tool frames pivotally'mounted on the auxil iary front frame, fifth wheel sections hearing between the tool frames and the auxiliary front frame, combined cultivating and propelling tools carried by the second named tool frame, an engine mounted on the main frame for driving all of said tools, and means for turning the tool frames.

10. An agricultural apparatus having combined propelling and cultivating tools arranged in two gangs, shaft sections connected with the respective gangs to drive them, a differential gear connecting the shaft sections, and means for imparting driving movement to said gear. 11. A motor driven agricultural apparatus comprising a frame, an engine mounted thereon, two tools mounted on the frame and engaging the ground, means for driving each tool, a differential gear connecting said means, and devices for driving said gear from the engine. 12. In a motor driven agricultural apparatus, the combination of a frame, two gangs of tools adapted to engage the earth, means for mounting said tools to turn on the frame, devices for driving said tools independently of the turning movement thereof, a differ- .ential gear connecting said devices, an engine, and means for driving the gear from the engine.

13. In a motor driven agricultural apparatus, the combination of a frame, two tool frames mounted to turn thereon, means for turning said frames, a tool carried by each frame and adapted to engage the earth, a. means for driving each tool, a differential gear connectin said means, and an engine having connection with the differential gear.

14. A motor driven agricultural apparatus, the combination of a frame, a tool frame arranged to turn thereon, a tool carried by said frame, means fordriving said tool, a screw shaft, a controllable means for rotating the same, a non-rotatable nut engaged by the screw shaft, and a connection between said nut and the tool frame.

15. In a motor driven agricultural. appa ratus, the combination of a frame, four tool frames arranged to turn thereon, a tool carried by each frame, an engine mounted on the main frame, means for driving said tools from the engine, screw shafts mounted on the main frame, non-rotatable nuts engaged by the screw shafts, links connecting said nuts respectively with the tool frames, and means for rotating the screw shafts.

16. In a motor driven ag'riculturai -apparatus, the combination of a frame, four tool frames arranged to turn thereon, a LOOl carried by each frame, an engine mounted on the main frame, means for driving said tools from the engine, screw shafts mounted on the main frame, non-rotatable nuts engaged the screw shafts, links ctmnecting said nuts res )ectively with the tool frames, and means for rotating the screw shafts, said means for operating the screw shafts comprising a tubular shaft, a shaft extending loosely through the same, a gear in connection with each of the last named shafts, and means respectively connecting said gears with the screw shafts.

17. In a motor driven agricultural apparatus, the combination of a frame. four tool frames arranged to turn thereon, a tool carried by each frame. an engine mounted on .through the same, a gear in connection with each of the last named shafts, means respectively connecting said gears with the screw shafts, an additional shaft, means for driving the same from the engine, gears loose on said additional shaft, gears fastened to the screw shafts and meshed with the gears of the additional shaft, and means for fixing one or the other of the said gears on the additional shaft to said shaft at will.

18. In a motor driven agricultural apparatus, the combination with steering means including two rotary shafts, of a gear fixed to each shaft, gears meshed with opposite sides of each of said gears, a driving shaft on which the second named gears are loosely mounted, and means for fastening one or the other of said second named gears to the driven shaft at will.

.19. In a motor driven agricultural apparatus, the combination with steering means including two rotary shafts, of a gear fixed to each shaft, gears meshed with opposite sides of each of said gears, a driving shaft on which the second named gears are loosely mounted, and means for fastening dne or theother of said second named gears to the driven shaft at will, said means comprising clutch collars splined on the driven shaft, forks engaged with the clutch collars, rods in connection with the forks, a tubular shaft in connection with one rod, and an additional shaft extending loosely through the tubular shaft and having connection with the other rod.

20. In an agricultural apparatus, the combination of a main frame, two tool frames mounted to turn thereon, a threaded shaft. means for operating the same, nuts threaded on said shaft and having forks loosely engaging a part of the frame, and connections between said nuts and the tool frames.

, 21. The combination of a motor driven agricultural apparatus. a second agricultural apparatus adapted to be driven, means for connecting the second apparatus with the first apparatus, and devices for driving the tool of the second apparatus from the motor of the first apparatus,

22. The combination of a motor driven agricultural apparatus, a second agricultural apparatus, means for steering the second agricultural apparatus, means for steering the first apparatus, and a connection between the two steering means, for the purpose specified.

23. The combination of a motor driven agricultural apparatus, a second. agricultural apparatus having connection therewith, means for steering the first apparatus, said means being driven by the engine thereof, means for steering the second apparatus, and a connection between the two steering means.

24. The combination of a motor driven agricultural apparatus, a second agricultural apparatus having connection therewith, a tool on the second apparatus, means having connection with the second apparatus to drive the tool of the second apparatus, means for steering the second apparatus, means for steering the first apparatus, the second nan'ied steering means being driven from the engine, and devices connecting the two steering means.

25. The combination of a motor driven agricultural apparatus, a second apparatus, links connecting the two, and means for driving the second apparatus from the engine of the first, said means including a universal joint coincident to the pivots of the links.

26. The combination of a motor driven agricultural apparatus, a second agricultural apparatus, means establishing pivotal connection between the two, and means for driving the second apparatus from the motor of the first, said means including a universal joint coincident to the pivot between the two apparatus.

27. The combination of two agricultural apparatus, a drive shaft extending between the same and having a, double universal joint therein, links ivoted to the two apparatus, the pivots being coincident to the universal joints of the drive shaft, and a tubular coupling connecting sections of the links together through which couplings the drive shaft passes.

28. An agricultural apparatus having cultivating tools in two gangs, a differential gear, means for driving the same, and means connectingthe differential gear with the said two-gangs of cultivating tools.

29. An agricultural apparatus having two cultivating tools, a differential gear, means for driving the same, and means connecting the differential gear with the said two cultivating tools.

30. The combination of a motor driven agricultural apparatus. a second agricultu a1 apparatus adapted to be driven, means for connecting the second apparatus to the first apparatus, and power transmitting devices extending from the first apparatus to the second apparatus to drive the same 3'1. An agricultural apparatus having a frame. an engine. two tool frames tansversely disposed. king-bolt connections hc tween the tool and first named frames, fifth wheel devices acting between the first named or main frame and the tool frames,

cultivating tools mounted on the tool frames, means for driving the cultivating tools ol each tool frame such means including! union the tool frame universal connections reversal connecticns coincident to the king} bolts of the respective tool frames, a diti'erential gear joining the means for driving the cultivating tools oF each tool frame and. a driving connection hetn'een the engine and difl'erential gear.

32. An agricultural apparatus having a frame, an engine, l'WU tool ramcs trans versely disposed, kingbolt connections lietvveen the tool, and first named frames, fifth wheel devices acting betvvcen the first named or main frame and the tool l'rames, eultivating tools mounted on the tool frames, means tor driving the cultivating tools of each tool frame such means including uni versal connections coincident to the king bolts of the respective tool. frames, a ditl'erential gear joining the means for driving the cultivating tools of each tool frame a driving connection between the engine and differential gear and a steering mechanism connected to the tool frames for turning them around their hingbolts.

33. An agricultural apparatus having a frame. two tool frames, king-bolt QOUDHQ- tions between the tool frames and the first, named or main frame, fifth wheel stations acting between the main and tool frames, an engine, .a differential gear, a driving con nection between the two, shaft sections mounted on the main frame and joined hy the differential gear, shaft sections mounted on the tool frames, universal connections respectively coincident to the lting-l'mlts and joining the shaft sections of the tool Frames respectively with those of the main frame. and means for driving the cultivating tools from the shaft sections on the tool frames,

34. An agricultural apparatus having; a frame, two tool frames, king -holti conuew tions between the tool frames and the first named or main frame. fifth Wheel sections acting between the main and tool frames, an engine, a differential gear, a driving eonnection between the two, sliat'tv sct'rtlions mounted on the main frame and joined by the differential gear, shalt sections mounted on the tool frames, universal conmwtions respeetively coincident to the kingdiolts and joining the shaft sections of the tool frames respectively with those of the main frame, and means for driving the cultivating tools from the shaft sections on the tool frame comprising sprocket and chain gearing ere tending from the shaft sections downward to the tools.

An agricultural apparatus having a frame, two tool frames, lting hoit connections between the tool franavs and the first: named or main frame, fit'th ala-el sections acting between the main and tool frames, an

engine, a elitterential gear, a driving con' net-tum between the two, shait sections mounted on the mam l'ranaand oined by the ditl'erentiai gear. shall sections mounted sywctivciv wincitlcnt to the liinglmlts and joining the shaft sections ot' the tool frames respectively with those of the main frame, means for driving: the cultivating tools from the shai't sections on the tool frames, and

steering devices connected to the tool frames to turn the same about their hing-holts.

3t). An agri uiturai apparatus having a main frame, an auxiliary frame mounted to oscillate thereon, two ultivating tools mounted on the aexiliary frame, an engine on the main frame, means for transmitting driving motion to the cultivating tools such means mounted on the auxiliary frame and including a diti'erential gear substantially coincident to the center-of oscillation of the auxiliary frame, and a driving connection between the engine and the differential gear.

37. An agricultural apparatus having a main frame, an auxiliary t'raine mounted to oscillate thereon, two tool frames mounted to turn on the ailxiliary Frame, hing-bolts pivotalljv tormenting said tool. frames with the auxiiiary frame, CtlltiVfitlfigiOOiS carried in; the tool frames, means at each tool i'rame for transmitting driving motion to the tools. such means including universal connections coincident to the respective hing-lmlts. a differential gear joining said means and located substantially coincident to the center of cscillation ot the auxiliary frame, an engine on the main frame and a driving connection between the engine and ditierential gear.

23%. An agricultural. apparatus having a main t'ralne, an auxiliary frame mounted to oscillate thereon, two tool frames mounted to turn on the auxiliary frame. king-bolts pivetally connecting said tool frames with the auxiliary t'rame, cultivating tools carried by the tool Frames, means at each tool frame for transmitting driving motion to the tools, such it 'ans including universal connections coincident to the respective hing-bolts, a ditierential gear joining said means and located substantially coincident to the center of oscillation of: the auxiliary frame. an engine on the main frame, a driving connection between the engine and dif terential gear and a steering neans connected to the tooi frames to steer the same.

9.3130 c mbination of two connected self-prtmelling cultivating apparatus, an engine on oneto drive it and a motion transmitting means driven by the engine and extending to the other apparatus to drive it also.

"10. The combination. of two self propelling cultivating apparatus, an engine on one to drive it and. a. motion transmitting 

